James mfrchie



(No Model.)

J MUROHIE HAND DRILLING MACHINE.

No. 596,375. Patented Dec. 28, 1897.

UNITED STATES ATENT rrrcn.

JAMES MURCHIE, OF TRAVERSE CITY, MICHIGAN, ASSIGNOR TO WILLIAM H. ARMSAND WILSON COLE, OF SAME PLACE.

HAND DRILLING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 596,375, dated December28, 1897. Application filed. June 1, 1897. Serial No. 639,023. (Nomodel.)

T aZZ whom, it may concern:

Be it known that 1, JAMES MUROHIE, of Traverse City, in the county ofGrand Traverse and State of Michigan, have invented certain new anduseful Improvements in Hand Drilling-Machines; and I do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itpertains to make and use it, reference being had to the accompanyingdrawings, which form part of this specification.

This invention relates to drilling-machines; and its object is toprovide a simple and improved machine having a number of adjustments,whereby it may be arranged in a great diversity of operating positionswith respect to its supporting means.

The invention consists in the novel features of construction and in thecombination and arrangement of parts hereinafter fully described andclaimed, and illustrated by the accompanying drawings, in which- Figure1 is a perspective View of the machine in position for operation. Fig. 2is a plan view. Fig. 3 is a sectional view of the drill-stem and feedingdevice. Fig. 4 is a detail view of the crank and ratchet. Fig. 5 is asimilar view of a portion of the frame and the frame-adjusting device.Fig. 6 is a detail view illustrating the swivel mounting of clamp-screwF.

The frame proper consists of jaw A, formed with the integral right-anglearms B B, which support segment 0, formed with are slot D. Screw E isrigid with jaw A, while screw F is swiveled to arm 13, and these screwssupport and adjust the second or movable jaw G, the latter moving freelyover screw E, being held thereto in proper position by nut E, while theopening through which screw F passes is screw-threaded and engaged bysaid screw. These jaws serve to clamp and secure the frame to the postor other object to be drilled. The angle at which the frame is set withrespect to such object is regulated by bracket G, mounted on screws Eand F and provided at its lower end with set-screw H. With the innerupper end of this bracket bearing against the object to be drilled orother sup port the angle'of the machine-frame is regulated by adjustingsaid screw either in or out.

to be secured in clamp J is an arm L, the same being turnable in theclamp, and thereby adjustable to any position required, and at the outerend of said arm is split clamp M. Adjustably secured in thislast-mentioned clamp is another arm N, formed with internallythreadedsocket portion 0. Adjustable longitudinally through said socket portionis externally-threaded feeding-sleeve P, in which bit-socket Q isrotatably secured, the latter having bit R detachably secured to itsinner end and at its outer end carrying ratchet S. Mounted loosely onthe stem is operatingcrank T, carrying pawl U, adapted to engage theratchet for imparting continuous rotary movement to the drill orintermittent motion by oscillating the crank. Sleeve P is turned, infeeding the drill, by pins P, arranged adjacent the crank.

The several adjustments here shown and described permit of the drillbeing placed in an almost endless number of operating positions. Thedrill is thus adapted for a greatvariety of work and for use in' manyplaces hitherto inaccessible to drilling-machines, as will be fullyappreciated by those skilled in the use of such machines. In addition tothe adjustments herein referred to a further and different position ofthe drill with respect to its support may be secured by omitting armL'altogether and securing arm N directly in clamp J of arm I, thusalining arms I and N and affording them adjustment on the segment as asingle arm.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is v 1. The combination of adrill-supporting clamp adapted to be secured to a pillar or othersupport, and a bracket carried by the clamp and extending at an anglethereto and adapted to engage the support, substantially as shown anddescribed.

2. An improved support for a drilling-machine, comprising arigidly-connected drillframe and jaw, a second jaw adjustable withrelation to the first-mentioned jaw, a bracket depending beneath thejaws, and a set-screw carried by the bracket, the parts operatingsubstantially as herein shown and described.

3. The combination of a drill-supporting clamp includinghorizontally-disposed jaws adapted to embrace a pillar or other support,a bracket depending from the clamp, and a screw adjustable in thebracket and adapted to bear against the support, and thus regulate theposition of the bracket and the clamp with relation to the support,substantially as shown and described.

4. An improved drill-machine comprising a frame including arms B and Bextending at an angle to each other, segment 0 supported by the arms, adrill and a drill-adjusting arm hinged concentrically with segment G andadapted to be held on the latter in proper adjustment, substantially asshown and described.

5. An improved hand drilling-machine, comprising a support, socket Ihinged thereto and means for securing the socket in proper adjustment,arm L having clamp M at its outer end and at its inner end adjustable insocket 1, arm N adjustable in socket M at right angles to arm L, arm Nbeing provided at one end with socket O, a drill-feeding mechanismmovable through socket O, and a drill, substantially as shown anddescribed.

6. In a drilling-machine, jaw A formed with integral right-angle arms Band B, segment 0 supported by the arms and formed with are slot D, adrill-adjusting arm hinged in the angle of the arms and extended overthe are slot and adapted to be secured in desired adjustment to thesegment, a drill, and a second jaw adjustable toward and away from jawA, substantially as shown and described.

In testimony whereof I ailix my signature in presence of two witnesses.

JAMES MURCIIIE.

Witnesses:

ANDREW SMITH, D. A. Woonwonrn.

